Portable camp stove



' July 7, 1925.

. 1,544,651 7 F. G. KLINERT PORTABLE CAMP STOVE Filed Nov. 1924 2 Sheets-Sheet" 1 FIELZ.

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Jul 7, 1925.

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F. G. KLINERT PORTABLE CAMP STOVE Filed Nov. 25, 1924 height.

' leg structure which can Patented July 7, 1925.

. UNITED STATES i. 1,544,651 I PATENT OFFICE.

FRED G. KLINERT, 0F DULUTH, MINNESOTA, ASSIGNOR TO HUGO MANUFACTURING COMPANY, OF WEST DULUTH, lVlINNESOTA, A' CORPORATION OF MINNESOTA.

PORTABLE oAMr STOVE.

Application filed November To all whom it may concern."

Be it known that I, FRED G. KLINERT, a citizen of the United States, and a resident of Duluth, in the county of St. Louis and State of Minnesota, have invented a new and useful Improvement in Portable (lamp Stoves, of which the following isa specification.

This invention relates generally to portable stoves, and particularly to a stove of this character especially adapted for tourists, campers and others .requiriiigstoves which can bereadily packed in a compact, convenient and safe form during transportation, and which can be quickly set up for use whenever desired. 7

: It is an object of the invention to provide.

a portable stove .which is extremely compact, sturdy in construction, easily manipulated, and which can 'bemanufactured at a'reasonable cost. v

It is a special object to provide a stove of this character in which the legs thereforv while adapted to rigidlysupport the stove when in its set-up condition, may neverthe I less be swung so as to embrace the sides of the casing and occupy the minimum space a when not in use, 7 I I It isalso a special object to provide such be easily fabricated,

and which is adaptel for use in connection with stoves having casings which are intended to be supported, at a substantial It is still a further special object to' provide a portable stove having legs which cooperate with retaining slots located at the sides of the casing in such a manner as to positively lock the legs in either their ex? tended casing-supporting or their retracted inoperative positions, and'without special attention on the part of the user, it-being in addition a special object to utilize the resiliency of the material forming the 'legs to automatically secure such locking effect all without resort to special devices in the nature of latches, tension springs, or other auxiliary locking means. v V J These and other objects of the invention will more fully appear-when taken in conjunction with the following description and the appended claims.-

In the accompanying drawings, Fig. 1 is a front elevational view of 'the preferred embodiment ofthe invention set up for use 5 pair, while'the legs the remaining pair. Preferably, each pair 25, 1924. .Serial No. 752,140.

Fig. 2 :a top plan View of the stove with the parts in the relative positions shown in Fig. 1; Fig.' 3 a front elevationalview of the stove in its fol'ded or knocked-downcondition, inother words, withthe several parts in position for transportation; Fig. 4 a bottom plan view illustrating in detail the method of attaching the supporting vlegs to the casing and the manner in which the legs embrace the side walls thereof; Fig. 5 a fragmentary sectional detail view, with parts in elevation, showing the structure of the leg terminal together with its cooperation with the retaining slot provided'in the side wall of the casing; and Fig. 6 a fragmentary bottom plan view illustrating a, modified form of leg construction. I

Referring to the drawings, the stove casing is preferably in the form illustrated, being rectangular in shape and resembling generally an ordinary suitcase. It may be constructedof sheet metal having a baked enamel coating and includes a bottom 1, side walls 2 and 3, end walls 4 and 5, and a lid 6, preferably hinged to the upper edge of the side wall 2. In order to lock the lid 6 in its closed position, a plurality of latches 7, pivoted to the forward edge of the lid as at 8, are provided. These latches preferably consist of pieces of sheet metal bent upon themselves adjacent the free extremity thereof, which bent or folded terminals are adapted to project through and interlock with suitable openings 9 provided in the front side wall of the casing, all as clearly shown in Fig. 3 of the drawings. In order that the entire stove structure may be readily carried when in its folded or knocked-down condition, the-front side wall may also be equipped with the bent wire handle indicated at 10.

I In the form illustrated, the casing is equipped with four supporting legs designated by the reference numerals 11, 11, 1'2 and 12, respectively, one being positioned at each corner of the casing.

The supporting legs are preferably arranged in pairs, and as illustrated in'the drawings, the legs 11 and 1 1 constitute one 12 and 12 constitute of legs constitutes a unitary structure fabricated from a single fiexib e rod of resllient material, formed by suitably bending the rod to the necessary shape. In other words,

the pair of legs 11, 11 are formed-by angularly bending the endsof a rod of flexible material and then folding these ends uponthemselvesauntil they. assume the shape clearly illustrated in Figs; band 3 of the drawings. The intermediate portion of this rod, disposed between the leg portions :11 and 11, is designated at 11". The distance between the legs l'l and ll, is suflicienttoenable the legs to embrace and lie closely v iadjace-nt the opposite vertical sidewalls of the casing 'when'swung to'theinoperative non-supporting position "shown in Fig, 3.1

' The legs may be pivotally' attached tothe' casing in any suitable manner,'one-conven-" ient' n cthodbeing to thread the'intermediate portion 11" through spaced eyelets such as shown .at 13, 13 attached tothe bottomof jection -or finger .15 adapted toproject the casing. The extremity of the rod .from

which the legs'are formed is -flattened for a short distance to form a perforated ter-t minalfl l in which is anchored a headed prov through and ride in an arcuate retaining 1 slot 16' formed in the adjacent vertical side wall of the-casing. "The head 17 0'fth'eprojection ori fingerlfi lies upon'ltheuinterior face of the sidewall and 1S- Of [sufficient V I I I I I dimensions to prevent withdrawal of the finger through the slot.

The slot'16 is arcuate in shape and concentric' with the axesof the eyelets 13,13, serving to pivotally support the legs.

The

opposite extremitiesof the slot 16 are in the portion 18' overlying the slot, -is rigidly form of'off-set portions 16", 16", respectively, these offset portions extending generally in thedir'ecti'on of tl'ie'plancsiof the bottom adisk 18, havingan intermediate fofi-set attached. to the inner face -of" the side wall.

Each corner of both the front-sndrear -vertical'side walls of the casing is provided with an arcuate slot of the chara-cter'just described, saidslot being adapted -toco- ';operate with a terininalofoneof the four struction of each of the retaining slots as" supporting legs. Since the detailsof 'conwell .as :the construction of the several legs of these parts wouldserve no useful purpose, the entire structureand modelof operation being obvious from the showing in the drawings. v As is usual instoves of thischaracter,

.the stove includes one or more burner jets,

a vapor generator and afuel supply tank,

---.tliese several elements being preferably united into a unitary structure. movable from a position entirely within .the casing to position with the tank disposed upon the finger or projection from the off-set the exterior g of'athe casi-ng when the stove is in use. In the embodiment illustrated, there are two burners 20,20, a single vapor generating tube '21"arrangedr above *tllGllbU-YINEL 20;and a fuel =supplyn-tanlc 22;operatively connected with the valve control mechanism '23 -for the burner 20 by means of a pipe 24. The valve mechanism 23 is controlled by'means'ofa stem. 25, the extremity of which is equipped with the knob 26. Likewise, the .valve' xnci echanism for :the burner 20 is" controlled: by means of the'stem 27 therouter end of which has -pivoted*there to the key28. Thetank 22 is rigidly cou nected to :the' remainingportions by means of a pairj of straps 29,29, which are adapted to engage the respective notches" 30,- 30, formed in the upper .edgeslofthe side wall 3, when the'burner structure is'positioned for use, 21SlllHStIZLiiGClLili FlgS. 1 and 2of" 'the draw ngs: The burnerstructure' is also equipped with the". usual mixing tube and pipes for conveying the fuel mixture to the burners, indicated generallyby'thereference numeral 31. p p

The sidewalls 2 and 3 ofthecasingare equipped with, thel-finwardlyr projecting ledges 32, 32, the la'tter having .thejupturned perforated terminal ears 33, 33, which'are adapted to receive the terminalsfo'f a flexible wiregrid- 34, thus serv ng :as 21$"CO11Y911l11t means for pivotally mounting and :supportng the 'gf'ld Wltlllfiltl16"(3LSlI1g,f2LS ellits providing means for permittlng its 'boolily removalvfrom the casing'whenever desired.

The entire burner structure maybe bodily moved from its inoperative position jin which the same islocated withinthe space below the grid 37 to itsoperative position with the tank disposed upon the exterior'of the casing, as illustratedin Figs. land 3.

.lVith the entire burner structure within the interior of the casing, and the grid r'estingupon the ledges 32,32, the lid (l -may be swung to its-clos d si i n lbcked .-means*'of thelatches 7,.in the m vioi' sly explained. 'fVVith' these partsl'thus arranged, and the supporting. legs .11, 11, 12,12 swung to ag'pos'iti'onto embrace the casing-gas shownin" ig. 3', =the.stove' i'siiri its knocked-down condition "ready for trans- -;p'ortation. l'VithIthe-legs in theirifolded areidentical, except as,to the relative disposition thereof, further detailed description condition, the fingers '15 he opposite the'offsetportions- 16" located atone extremity of the ar'cuate slots,a'nd are snapped into lock i-ng'engagement therewith under the resiliency'of the material from which the legs are made, and are consequently held insuch position: until subsequently "released. by

v springingjthe 'limbs o'f. the legs toward each" aroundits pivotal connection with. the easng untilit assumesthe positionshownfin Fig. l of the drawings. As soon as the finger. 15 reaches theofl-set 16,.it snaps thereinto under the resiliency of the legs thuspositively looking it in its casing-supporting position :until subsequently.released by again forcibly springing. the: limbs. of the leg togethenin a manner-similar to that described in releasing the finger from the off-set 167., Since the legs 11 and 11',

constituting one pair, form a single unit with the intermediate. portion 11." of the flexible resilient .rod from. which. they are formed, it is-understood thatthe terminals of opposite legs of a pair arereleased from their retaining slots simultaneously, and swung as a unit from the position shown in Fig. 3 to that shown in Fig. 1 of the drawings, and that the legs 12. 12' constituting the remaining pair. are likewise adjusted from their inoperative to their casing-sup porting positions.

In the embodiment illustrated in Figs. 1 to 4, the lengths of the legs 11, 12, and 11, 12 of the two pairs. are such that the juncture of the limbs of the legs at either side of the casing merely lie in juxtaposition when brought to their inoperative folded condition. In some instances it has been found desirable to support the stove casing at a height greater than is afforded by the arrangement shown in Figs. l to 4. In this I event, the supporting legs are made of considerably greater length, and are arranged so that the leg of one pair overlaps the contiguous leg of the remaining pair throughout a portion of its length. Such modified construction is illustrated in Fig. 6 of the drawings. In this figure, leg 40 of one pair lies closely adjacent the side wall of the casing throughout its entire extent, while the contiguous leg 41 of the remaining pair is off-set as at 42 so that the portion 41' therebeyond is adapted to overlie the leg 40, in the manner clearly shown in this figure.

It is thus seen that the invention provides a portable stove which while adapted to firmly support the casing at a considerable elevation. nevertheless may be quickly and easily folded or knocked. down so as to cocupy but a very limited space, that the supporting leg structure may be'fabricated at a very low cost, and that the cooperation between the leg structure and the arcuate retaining slots provided in the casing walls serves to automatically lock the supporting legs in both their inoperative folded condition as well as their casing-supporting position under the influence of the resiliency of the legs themselves and without any special effort on the part of the user.

In accordance with the requirements of the patent statutes, the principle and mode of operation of'tlie preferred embodiment the invention 'has been illustrated and described, but it is obvious that many changes in details and arrangements may be made without departing from" the spirit of the invention. It is therefore not intended vto limit theinvention beyond that particularly defined by theappended claims. I

Iclaim: I a 5 A portable stovecomprisinga casing providedwith vertical side-walls, supporting" legs pivoted to the casing adapted to inorina'lly lie' clo'sely jadjacent the said side walls when not in use and to be swung there from to casing supporting position, the side walls having arcuate; retaining [slots providedv with spaced off-set portions formed therein, and a projection carried byeachof the legs riding in 'oneof the said slots.

2. A portable stove comprising a casing provided with vertical side walls, supporting legs pivoted to the casing, each of said legs including a flexible rod adapted to lie closelyadjacent one of the side walls when not in use andto be swung on its pivot away from the side walls into casingsupporting position, the side walls having arcuate ret aining slots formed therein equipped with eccentrically disposed ofl-set portions, and a finger rigidly carried by the rod projecting through the said slot.

3. A portable stove comprising a casing having vertical side walls provided with elongated arcuate retaining slots having eccentrically disposed off-sets at its extremities, supporting legs pivoted to saidcasing. including portions which normally lie closely adjacent the side walls when not in use and adapted to be swung therefrom into casing-supporting position, said portions being formed of flexible material, a projection carried by each of said portions'riding. in one of said slots, said projections being urged into locking engagement with said off-sets under the resiliency of said portions of the legs. I

t. A portable stove comprising a casing having vertical side walls provided with arcuate retaining slots with off-set portions formed therein, supporting means including a rod having an intermediate portion and angularly extending ends forming legs, the said intermediate portion being pivotally attached to the casing and the said legs being adapted to lie closely adjacent whereby to embrace the opposite side walls when swung to inoperative position, the terminals of said legs being provided with fingers riding in said slots.

5. A portable stove comprising a casing having vertical side walls provided with arcuate retaining slots with eccentrically offset portions formed at their extremities, sup-' porting means including a resilient rod of flexible material having an intermediate portion and; ,angulerly extending ends forming legs,uthe saidihtermediete pqrtionbeing pivfotallfl: attaehedjto thelcasingl end-the s2tid legs ing. eda'pted. teembrace oppositeside fwalls oi:thencasingfl whenswung to inbpem- .ti'ver nomsupporting ,p sitio-n, the terminals 701E said. "legs: being. equipped with laterally projecting fingers extending through saidi slots, said. fingei's being urged into loeking engagement; .with .the off-set Tpqrtions .of ,the slots under the resiliency ef the legs 6. A .ipqrtab le stove comprising a casing having 3 bottomand vertical sidewalls, each s ider wallQbeing lplfo-vid'e'd with an 'areuate .i-etainin'gtgslot with TOfl-S'et portions formed etits extremities, the elf-set portions at 0pposite. ends of V the slot extending generally in thedii'eetieh of the plene oi thebettom and sidewalls, itespeptively, s uppqrtilig legs pivoted to the easing, each .of the supporting legs; beingljoimed bf a resilieht fieizible rod bent ilpen itself the piyetel point; of each tendilig .thiouglr one (if theslots wi-th the head thereofi ion. thintetiOrnf the side wall, sa-i'dl p olectio-n-being ,ada'ptedto be snapped intothe'o ff-etpo rtiens of the slot Lindef the \resil-ieiic y of i the leg, engagement with the oppqsite' o fi slet"portiehs*of, a slot,

hiking thelegs; in" inbperative *alidi casing siippqrtihg positions, respectively; 1 L ln testimony whereofgI sign my name."

. FREDQTKLINERT? 

